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Finding the Fourth Proportional to 27,076.80, 40,582.80 and 13,922.40

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Solution

The fourth proportional to 27,076.80, 40,582.80 and 13,922.40 is: 20,866.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,076.80 : 40,582.80 = 13,922.40 : x
  2. Step 2: Convert to fraction form
    27,076.80/40,582.80 = 13,922.40/x
  3. Step 3: Cross multiply
    27,076.80x = 40,582.80 × 13,922.40
  4. Step 4: Simplify right side
    27,076.80x = 565,009,974.72
  5. Step 5: Solve for x
    x = 565,009,974.72/27,076.80
  6. Step 6: Final answer
    x = 20,866.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.